oh boo hoo! all your ranting summarized into one short sentence >>> "another Indian upset because Sri Lanka and Pakistan Armed forces are training together and learning from each other.
You got it wrong there .... Sri Lankan and Pakistani forces are not training "together" !!!!!! Sri Lankan armed forces have been asked to provide "training" to Pakistani armed forces on counter insurgency operations :D
Hope you get it now !!!!
As for supplying arms to Sri Lanka .... think Pakistan army did not think it through .... now they are running short of "equipment" :D